feat(cli): route runtime commands and add bd diagnostics to status

tests/cli/beadboard-bin-routing.test.ts

@@ -0,0 +1,20 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import path from 'node:path';
+import { execFile } from 'node:child_process';
+import { promisify } from 'node:util';
+
+const execFileAsync = promisify(execFile);
+const binPath = path.resolve('bin/beadboard.js');
+
+test('bin routes status --json to launcher runtime command', async () => {
+  try {
+    const { stdout } = await execFileAsync(process.execPath, [binPath, 'status', '--json']);
+    const payload = JSON.parse(stdout);
+    assert.equal(payload.command, 'status');
+  } catch (error) {
+    const stdout = (error as { stdout?: string }).stdout || '';
+    const payload = stdout ? JSON.parse(stdout) : null;
+    assert.equal(payload?.command, 'status');
+  }
+});